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    SubjectRe: 2.6.25-rc7: Ugh.
    (CCing linux-usb again)
    (CCing Alan Stern on this sub-thread)

    Oliver Neukum wrote:
    > Am Montag, 31. März 2008 21:21:45 schrieb Mark Lord:
    >> Oliver Neukum wrote:
    >>> But if power is cut with newer kernels and older kernels retain it, something
    >>> must have changed. Can you undo the ACPI changes since the last working
    >>> kernel?
    >> ..
    >>
    >> No, that's no different.
    >> This notebook always cuts +5V from USB on suspend or poweroff.
    >> Regardless of kernel version. I don't know how common this is,
    >> but all of my notebooks here have always behaved this way,
    >> as have most (but not all) of the larger systems.
    >>
    >> The two most recent PCIe motherboards I have here
    >> do provide +5V standby power to USB, even when "OFF",
    >> much to my annoyance and to the detriment of this planet.
    >
    > Very well.
    >
    > Mark, can you get a sysrq-t trace of your whole system when USB goes
    > dead? And please enable CONFIG_USB_DEBUG. We need to do whether
    > khubd and ksuspend_usbd are in state D.
    ..

    Both of those things were already done, and results from the last time
    are attached to the bugzilla report: http://bugzilla.kernel.org/show_bug.cgi?id=10345

    I'll be installing -rc8 today, and see what happens there.

    Cheers

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